Cast Iron Cleaning Brush, with scraper, 9"" / 23cm, durable bristles, non-toxic and BPA free. Cast iron pots and pans are the gentle giants of cookware. They're big. They're heavy. And they require a certain... sensitivity. With our toughest reinforced (but not metal) bristles and special scraper, this combo brush needs only water to safely remove even the most stuck-on bits. Like they say, no soap, no problem.